Vol. XXVli] ENTOMOLOGICAL NEWS. 155 



mens of jocosa together with several Phigalia titca and three 

 Nyctobia limitata were taken from the grove from three to 

 four o'clock in the afternoon. Most of the jocosa were found 

 low down on the bases of the trees but P. titca was usually 

 higher up. The Joker moths were easily bottled as they are 

 sluggish, but Phigalia titca and Nyctobia limitata required the 

 use of a net, as they were inclined to fly up when one got to 

 within several feet of them. The second day, April 8th, was 

 still warmer and clear but the result was not as anticipated as 

 only about ten specimens of The Joker were secured. On the 

 third day, April 9th, which was decidedly cooler but still clear, 

 I took over eighty specimens of jocosa from the grove, prac- 

 tically all of them freshly emerged specimens. 



When pinning and spreading these specimens care has to be 

 taken to remove with cotton all the oily substance which exudes 

 from the wings, around the pin, etc., as otherwise the wings 

 stick to the spreading board when dry, spoiling the specimen 

 by tearing the wings. 



This species is well named The Joker, as it forms one of the 

 most natural mimics of the insect world, being almost a perfect 

 copy of the lichen found on hemlock. 



Euchloe genutia Fab. (Lep.). 



A pair of Euchloe genutia fell to my lot for the first time 

 this year. On April 24th while walking along the track of the 

 "Cannon Ball" express in Oregon I spied a butterfly which 

 did not seem familiar and as it was a slow flier I captured it 

 and found it to be the male of E. gcnutia. On the next day I 

 happened along the same route and took the female in practi- 

 cally the same place, but although I visited the region steadily 

 after that, I could not add more to the number. 



Vanessa milberti Godart. (Lep.). 



I'anessa milberti was also present in my vicinity this year 

 although I have never seen it here before. One specimen was 

 taken on the blossoms of wild plum near Hanover Park on 

 April 29th, and later in the season I took several fresh speci- 

 mens near the same locality on the flowers of alfalfa. These 

 last were undoubtedly of a second brood. 



